METHOD AND DEVICE FOR ADJUSTING PICTURE QUALITY OF DISPLAYER

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First Claim
1. A method for adjusting picture quality of displayer, comprising:
 adjusting a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ
_{n }under the preset value;
computing the value of γ
_{n}′
corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ
_{n}, and the values of γ
_{0 }and γ
_{0}′
corresponding to a standardPQdisplayer under one same gray scale; and
adjusting picture quality of the tobeadjusteddisplayer according to the value of γ
_{n}′
;
wherein, the value of γ
_{0 }is the Gammavalue of a core of the standardPQdisplayer when the Gammavalue of the standardPQdisplayer reaches the target value, the value of γ
_{0}′
is the Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches the target, the value of γ
_{n }is the Gammavalue of the core of the tobeadjusteddisplayer when the Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ
_{n}′
is the Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
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Abstract
The present disclosure discloses a method for adjusting picture quality of displayer, comprising: adjusting a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as under the preset value; computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by a preset algorithm based on the γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale; and adjusting picture quality of the tobeadjusteddisplayer according to the γ_{n}′. The present disclosure also discloses a device for adjusting picture quality of displayer.
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16 Claims
 1. A method for adjusting picture quality of displayer, comprising:
adjusting a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ
_{n }under the preset value;computing the value of γ
_{n}′
corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ
_{n}, and the values of γ
_{0 }and γ
_{0}′
corresponding to a standardPQdisplayer under one same gray scale; andadjusting picture quality of the tobeadjusteddisplayer according to the value of γ
_{n}′
;wherein, the value of γ
_{0 }is the Gammavalue of a core of the standardPQdisplayer when the Gammavalue of the standardPQdisplayer reaches the target value, the value of γ
_{0}′
is the Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches the target, the value of γ
_{n }is the Gammavalue of the core of the tobeadjusteddisplayer when the Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ
_{n}′
is the Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target. View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
 9. A device for adjusting picture quality, comprising a processor and a memory, wherein the processor executes instructions stored in the memory to implement:
an adjusting module, configured to adjust a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ
_{n }under the preset value; anda computing module, configured to compute the value of γ
_{n}′
corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ
_{n}, the values of γ
_{0 }and γ
_{0}′
corresponding to a standardPQdisplayer, which are under one same gray scale;the adjusting module being further configured to adjust picture quality of the tobeadjusteddisplayer according to the value of γ
_{n}′
;wherein, the value of γ
_{0 }is the Gammavalue of a core of the standardPQdisplayer when the Gammavalue of the standardPQdisplayer reaches the target value, the value of γ
_{0}′
is the Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches the target, the value of γ
_{n }is the Gammavalue of the core of the tobeadjusteddisplayer when the Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ
_{n}′
is the Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target. View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
1 Specification
The present disclosure relates to the technical field of displayers, in particular, relates to a method and a device for adjusting picture quality of displayers.
Picture quality (herein after PQ) of a television needs to be adjusted during design of the television. Since the adjustment of picture quality is delicate, it is common to obtain an adjusting data by performing the adjusting on one standardPQdisplayer first, and then to apply the obtained data to other displayers of same model which are produced in the same batch.
However, for any batch of electronic products, product performance deviation or dispersion among individuals are inevitably existed. Even if two products are of one same model and batch, the performance of the two products are not assuredly the same. Such issue also exists in Thin Film Transistor Liquid Crystal displayer television or other displayer devices. Due to factors such as manufacturing accuracy and quality control, individuals of one batch are usually different in brightness and color. For instance, among the displayers of one same model which are produced in the same batch, the maximum brightness difference reaches nearly 20%, and the Gammavalue ranges from 1.8 to 2.5. The difference between Gammavaluevalues under different gray scales is even larger for one same displayer. These differences have directly affected the picture quality of the displayers, such as brightness, and level of contrast.
So, due to the individual differences between the standardPQdisplayer and the tobeadjusteddisplayer, applying the adjusting data of the standardPQdisplayer to the tobeadjusteddisplayers may seriously affect the picture quality of the displayers that finally obtain. The picture quality finally obtained may deviate from or even be antipodal to what is initially desired.
Currently, in order to make the massproduced products achieve the picture quality as a standardPQdisplayer as desired at the beginning of design, it is common to strictly control components in consistency so as to reduce the performance difference among the massproduced individuals. However, in practice, it is still difficult to assure the picture quality of the massproduced products to be as good as the picture quality of a standardPQdisplayer.
The above content is only used to assist in understanding the technical schemes of the present disclosure, and does not mean to admit that the above content is the prior art.
The main purpose of the present disclosure is to provide a method and a device for adjusting picture quality of displayer, to solve the problem that the picture quality of massproduced products is not as good as the picture quality of a standardPQdisplayer, even though by controlling components in consistency of the massproduced products.
In order to achieve the above object, the present disclosure provides a method for adjusting picture quality of displayer, which includes the following steps:
 adjusting a core of a tobeadjusteddisplayer to make Gammavalue (γ) value of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ_{n }under the preset value;
 computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale; and
 adjusting picture quality of the tobeadjusteddisplayer according to the value of γ_{n}′;
 and, the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
Preferably, the method further includes:
 acquiring a functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusteddisplayer; and
 acquiring the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by operation on the functional relationships.
Preferably, the functional relationship between Gammavalue of the displayer and Gammavalue of the core is:
Gammavalue of the displayer including Gammavalue of the core and Gammavalue of a Timer Control Register, the functional relationship between Gammavalue of the displayer and, Gammavalue of the core and Gammavalue of the Timer Control Register being presented as follows:
n{circumflex over ( )}(γ_{0}·γ_{T0})=n{circumflex over ( )}a, for the standardPQdisplayer, when Gammavalue of the displayer is the target value a; and
n{circumflex over ( )}(γ_{n}·γ_{Tn})=n{circumflex over ( )}a, for the tobeadjusteddisplayer, when Gammavalue of the displayer is the target value a; and,
Gammavalue of the Timer Control Register being determined by a screen driving plate and is a fixed value; the value of γ_{T0 }is Gammavalue of the Timer Control Register of the standardPQ display; the value of γ_{Tn }is Gammavalue of the Timer Control Register of the tobeadjusteddisplayer.
Preferably, the preset algorithm is γ_{n}′=γ_{0}′·γ_{n}/γ_{0}.
Preferably, before the operation of adjusting a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ_{n }under the preset value, the method further includes:
 adjusting the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and taking the current Gammavalue of the core as the value of ≢_{0 }under the preset value;
 adjusting the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value;
 inputting the values of γ_{0 }and γ_{n}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer.
Preferably, the method further includes:
 setting the target value of Gammavalue of the displayer corresponding to the preset gray scale according to gray level.
Preferably, the operation of setting the target value of Gammavalue of the displayer corresponding to the preset gray scale according to gray level includes:
 setting the target value of Gammavalue of the displayer corresponding to a gray scale of a lower gray level greater than or equal to the target value of Gammavalue of the displayer corresponding to a gray scale of a higher gray level.
Preferably, the method further includes:
 sending a warning message, when the value of γ_{n}′ is not obtained by adjusting the core.
In addition, in order to achieve the above object, the present disclosure also provides a device for adjusting picture quality of displayer, which includes:
 an adjusting module, configured to adjust a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ_{n }under the preset value; and
 a computing module, configured to compute the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale;
 the adjusting module being further configured to adjust picture quality of the tobeadjusteddisplayer according to the value of γ_{n}′;
 and the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
Preferably, the device for adjusting picture quality of displayer further includes:
 an acquiring module, configured to acquire a functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusted display; and
 an algorithm module, configured to acquire the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by operation on the functional relationships.
Preferably, the functional relationship between Gammavalue of the displayer and Gammavalue of the core is:
Gammavalue of the displayer including Gammavalue of the core and Gammavalue of a Timer Control Register, the functional relationship between Gammavalue of the displayer and, Gammavalue of the core and Gammavalue of the Timer Control Register being represented as follows:
n{circumflex over ( )}(γ_{n}·γ_{Tn})=n{circumflex over ( )}a, for the standardPQdisplayer, when Gammavalue of the displayer is the target value a; and
n{circumflex over ( )}(γ_{n}·γ_{Tn})=n{circumflex over ( )}a, for the tobeadjusteddisplayer, when Gammavalue of the displayer is the target value a; and,
Gammavalue of the Timer Control Register being determined by a screen driving plate and is a fixed value; the value of γ_{T0 }is Gammavalue of the Timer Control Register of the standardPQ display; the value of γ_{Tn }is Gammavalue of the Timer Control Register of the tobeadjusteddisplayer.
Preferably, the preset algorithm is γ_{n}′=γ_{0}′·γ_{n}/γ_{0}.
Preferably, the device for adjusting picture quality of displayer further includes an inputting module;
 the adjusting module is further configured to adjust the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and to take the corresponding Gammavalue of the core as the value of γ_{0 }under the preset value; and
 adjusting the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value;
 the inputting module is configured to input the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer.
Preferably, the device for adjusting picture quality of displayer further includes:
 a target value setting module, configured to set the target value of Gammavalue of the displayer corresponding to the preset gray scale according to gray level.
Preferably, the target value setting module is also configured to set the target value of Gammavalue of the displayer corresponding to a gray scale of a lower gray level greater than or equal to the target value of Gammavalue of the displayer corresponding to a gray scale of a higher gray level.
Preferably, the device for adjusting picture quality of displayer further includes:
 a warning module, configured to send a warning message, when the value of γ_{n}′ is not obtained by adjusting the core.
According to the present disclosure, a core of a tobeadjusteddisplayer is adjusted to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and the corresponding Gammavalue of the core is taken as the value of γ_{n }under the preset value; the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is computed by a preset algorithm based on the value of γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale; and picture quality of the tobeadjusteddisplayer is adjusted according to the value of γ_{n}′; and, the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target. It is realized that the value of γ_{n}′ corresponding to each tobeadjusteddisplayer corresponds to the components of the displayer, by computing the value of γ_{n}′ and adjusting cores of the tobeadjusteddisplayers. The value of γ_{n}′ is different when the component is different, thereby whether the components are in consistency has nothing to do with the adjustment of picture quality of the tobeadjusteddisplayers.
The realization, functional characteristics and advantages of the object of the present disclosure will be further explained with reference to the attached drawings in combination with embodiments.
It should be understood that the specific embodiments described herein are only for the purpose of explaining the present disclosure and are not intended to limit the present disclosure.
The present disclosure provides a method for adjusting picture quality of a displayer.
Referring to
In one embodiment, the method for adjusting picture quality of displayer includes:
Step S10, adjusting a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ_{n }under the preset value.
For displayers, in order to make all picture quality of displayers the same, it is necessary to strictly control components of the displayers in consistency so as to reduce performance difference between the massproduced displayers, and to adjust the tobeadjusteddisplayers according to a standardPQdisplayer as standard so as to make all the picture quality of the tobeadjusteddisplayers reach or approximately reach the picture quality of the standardPQdisplayer. When Gammavalue of a displayer reaches a value that makes the best picture quality, the picture quality of the displayer would have been adjusted to the target picture quality. Gammavalue of the displayer includes Gammavalue of the core and Gammavalue of the Timer Controller Register (TCON) of the displayer. And since Gammavalue of TCON is determined by properties of the screen driving plate, that is, Gammavalue of TCON of the displayer is fixed, adjusting picture quality is actually to adjust Gammavalue of the core. Generally speaking, adjusting picture quality is to adjust different gray scales. Because there commonly divided with 256 different gray scales, Gammavalues of a displayer don'"'"'t have to be the same when the displayer reaches one target picture quality under different gray scales, that is, Gammavalues of the core don'"'"'t have to be the same. As it is convenient to measure Gammavalue of a displayer, and same picture quality corresponds to same Gammavalue of the displayers, a tobeadjusteddisplayer differs only in Gammavalue of the core in comparison with the standardPQdisplayer when the tobeadjusteddisplayer reaches the same picture quality with that of the standardPQdisplayer. And Gammavalue of the core of the standardPQdisplayer is known when the adjustment is finished, Gammavalue of TCON may be presented in relationship with Gammavalue of the core and/or Gammavalue of the displayer, which means the only one unknown is Gammavalue of the core of the tobeadjusted display; adjust a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and take the corresponding Gammavalue of the core as the value of γ_{n }under the preset value; thereby, excluding the effect caused by inconvenient measurement of Gammavalue of TCON.
Step S20, computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale.
As mentioned above, as only Gammavalue of the core of the tobeadjusteddisplayer is unknown, and Gammavalue of the displayer includes Gammavalue of the core and Gammavalue of the TCON, a preset algorithm may be obtained through mathematical operation according to the relationship between Gammavalue of the tobeadjusteddisplayer, Gammavalue of the standardPQdisplayer, Gammavalue of the cores and the TCONs of the tobeadjusteddisplayer and the standardPQdisplayer. That is, Gammavalue of the core of the tobeadjusteddisplayer is presented by Gammavalue of the tobeadjusteddisplayer and Gammavalue of the TCON of the tobeadjusteddisplayer, and Gammavalue of the tobeadjusteddisplayer and Gammavalue of the TCON of the tobeadjusteddisplayer may be presented by Gammavalue of the standardPQdisplayer and Gammavalue of the core of the standardPQdisplayer. It means that to present Gammavalue of the core of the tobeadjusteddisplayer by Gammavalue of the standardPQdisplayer and Gammavalue of the core of the standardPQdisplayer (the preset algorithm), and Gammavalue of the core of the standardPQdisplayer is known (γ_{0}, γ_{0}′), the value of γ_{n }of the tobeadjusteddisplayer may also be obtained by adjustment, therefore the value of γ_{n}′ corresponding to the tobeadjusteddisplayer may be computed according to the preset algorithm and, the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
Step S30, adjusting picture quality of the tobeadjusteddisplayer according to the value of γ_{n}′;
and, the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
The core of the tobeadjusteddisplayer is adjusted to make Gammavalue of the core be the value of γ_{n}′ under the gray scale, so as to realize the adjustment of the picture quality. In this case, Gammavalue of the tobeadjusteddisplayer is the same as that of the standardPQdisplayer, that is, the picture quality of the tobeadjusteddisplayer is the same as that of the standardPQdisplayer. Traditional picture quality adjustment method is to directly copy Gammavalue of the core of the standardPQdisplayer to the tobeadjusteddisplayer. When Gammavalue of the TCON of the standardPQdisplayer is different from that of the tobeadjusteddisplayer, i.e., when there is performance difference between individual products, Gammavalue of the tobeadjusteddisplayer will be different from that of the standardPQdisplayer, i.e. the picture quality of the two displayers is different. The picture quality of the displayers is adjusted by adaptively computing all Gammavalue of the cores of tobeadjusteddisplayers, so that each tobeadjusteddisplayer may have the same picture quality with that of the standardPQdisplayer regardless of whether the components of the displayers are in consistency, which is simple and efficient.
According to the present embodiment, the picture quality of the displayers is adjusted by adaptively computing all Gammavalue of the core of tobeadjusteddisplayers, so that each tobeadjusteddisplayer may have the same picture quality with that of the standardPQdisplayer regardless of whether the components of the displayers are in consistency, which is simple and efficient.
Referring to
Step S40, acquiring a functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusted display; and
Step S50, acquiring the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by operation on the functional relationships.
A functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusted display are acquired; and the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is acquired by operation on the functional relationships. In one embodiment, the computing process according to the preset algorithm is as follows, in which the target value of Gammavalue of the displayer is taken as 2.2 as an example for description. Of course, Gammavalue of the displayer may also be any other values; under the gray scale n, Gammavalue of the TCON of the standardPQdisplayer is recorded as the value of γ_{T0}, Gammavalue of the core is recorded as the value of γ_{0 }when Gammavalue of the displayer is 2.2, and when Gammavalue of the core is the value of γ_{0}, the standardPQdisplayer has the target picture quality, and Gammavalue of the displayer is a; record Gammavalue of the TCON of the tobeadjusteddisplayer as the value of γ_{Tn}, and when Gammavalue of the displayer reaches 2.2, Gammavalue of its core is the value of γ_{n}. When Gammavalue of the tobeadjusteddisplayer is also a, the tobeadjusteddisplayer has the target picture quality same with that of the standardPQdisplayer, and the corresponding Gammavalue of the core is the value of γ_{n}′; the functional relationship between Gammavalue of the displayer and Gammavalue of the core and the TCON is represented as follows:
n{circumflex over ( )}(γ_{0}′−γ_{T0})=n{circumflex over ( )}a (1)
n{circumflex over ( )}(γ_{0}·γ_{T0})=n{circumflex over ( )}2.2 (2)
n{circumflex over ( )}(γ_{n}′·γ_{Tn})=n{circumflex over ( )}a (3)
n{circumflex over ( )}(γ_{n}·γ_{Tn})=n{circumflex over ( )}2.2 (4)
From the above equations (1) and (3), (2) and (4), it may be obtained as follows:
n{circumflex over ( )}(γ_{0}′·γ_{T0})={circumflex over ( )}(γ_{n}′·γ_{Tn}) (5)
n{circumflex over ( )}(γ_{0}·γ_{T0})=n{circumflex over ( )}(γ_{n}·γ_{Tn}) (6)
That is,
γ_{0}′·γ_{T0}=γ_{n}′·γ_{Tn} (7)
γ_{0}·γ_{T0}=γ_{n}′·γ_{Tn} (8)
From equations (7) and (8), it may be obtained as follows:
γ_{0}′/γ_{0}=γ_{n}′/γ_{n} (9)
That is,
γ_{n}′=γ_{0}′·γ_{n}/γ_{0} (10)
The above formula (10) is the preset algorithm. It may be known from the formula (10) that as long as the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer, and the value of γ_{n }of the tobeadjusteddisplayer, are determined, the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is determined. And the value of γ_{n}′ is right the Gammavalue of the core to be adjusted to for the picture quality same with that of the standardPQdisplayer. It is simple to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer via the preset algorithm, which corresponds to Gammavalue of the core that makes the tobeadjusteddisplayer gain the same picture quality with that of the standardPQdisplayer.
In this embodiment, the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is obtained by the functional relationship between Gammavalue of displayer and Gammavalue of core, and the functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusteddisplayer. It is simple to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer via the preset algorithm, which corresponds to Gammavalue of the core that makes the tobeadjusteddisplayer gain the same picture quality with that of the standardPQdisplayer.
Referring to
S60, adjusting the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0 }under the preset value;
S70, adjusting the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value;
S80, inputting the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer.
As mentioned above, to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer through the preset algorithm makes it necessary to know the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer, and the value of γ_{n }of the tobeadjusteddisplayer, and the values of γ_{0 }and γ_{0}′ are obtained by adjusting the standardPQdisplayer. adjust the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0 }under the preset value; adjust the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value; Input the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer after the values of γ_{0 }and γ_{0}′ are obtained, then it is only necessary for obtaining the value of γ_{n}′ corresponding to the tobeadjusteddisplayer to adjust the tobeadjusteddisplayer so that Gammavalue of the tobeadjusteddisplayer reaches the target value; the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer may be inputted into the tobeadjusteddisplayers in one time, which are produced in one batch, so that picture quality adjustment may be carried out on the batch of the tobeadjusteddisplayers.
According to the embodiment, the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer may be obtained in advance, and then input the values of γ_{0 }and γ_{0}′ into the tobeadjusteddisplayers, so that the picture quality adjustment may be carried out on the batch of the tobeadjusteddisplayers.
Referring to
S90, setting the target value of Gammavalue of the displayer corresponding to the preset gray scale according to gray level.
The adjustment of picture quality is not only to adjust Gammavalue of the core, but also to adjust the color, etc. There are commonly divided with 256 gray levels ranging from 0 to 255, generally speaking, if the gray level is higher, the color displayed is richer, the picture is finer, and more details are shown. However, too low gray scale makes it necessary to increase Gammavalue of the displayer when to improve the contrast. For example, when the gray scale is high, Gammavalue of the displayer is set to 2.2, and when the gray scale is too low, Gammavalue of the displayer is adjusted to 2.4. The target value of Gammavalue of the displayer corresponding to the preset gray scale according to gray level. And the gray levels may be divided according to the requirements of picture contrast during the adjustment, and also may be divided according to empirical values. For example, set the target value of Gammavalue of the displayer, which is corresponding to the preset gray scale under the gray level 0˜10, to 2.4, and set the target value of the displayer, which is corresponding to the preset gray scale under the gray level 11 to 255, to 2.2. Set the target value of the displayer, which is corresponding to the preset gray scale, according to the gray levels may improve the contrast of the picture quality.
According to the present embodiment, setting the target value of the displayer corresponding to the preset gray scale according to the gray levels may improve the contrast of the picture quality.
Referring to
S100, sending a warning message, when the value of γ_{n}′ value is not obtained by adjusting the core.
Because the value of γ_{n}′ is computed according to the preset algorithm, and there exists difference between performance of massproduced products, when the difference between performance of some displayers and that of the standardPQdisplayer is smaller, the difference between the computed value of γ_{n}′ and the value of γ_{n}′ corresponding to the standardPQdisplayer is also smaller, while the difference is larger for some displayers, and in this case, the difference between the computed value of γ_{n}′ and the value of γ_{0}′ corresponding to the standardPQdisplayer is also larger. Gammavalue of core may be adjusted within a range. When the difference between the computed value of γ_{n}′ and the value of γ_{0}′ corresponding to the standardPQdisplayer is large (beyond the adjustment range of Gammavalue of core), Gammavalue of the core of the tobeadjusteddisplayer may not necessarily be adjusted to the computed value of γ_{n}′. In this case, it may remind in ways such as sending a warning message, so as to determine whether it is necessary to change hardware of the tobeadjusteddisplayer, etc., thereby it is ensured that all displayers may be adjusted to have the target picture quality of the standardPQdisplayer.
According to the present embodiment, a warning message is sent, when the value of γ_{n}′ value is not obtained by adjusting the core, so that the worker may deal with the displayer, thus to ensure that all the displayers may be adjusted to have the target picture quality.
The present disclosure also provides a device for adjusting picture quality of displayer.
Referring to
In one embodiment, the method for adjusting picture quality of displayer includes: an adjusting module 10 and a computing module 20.
An adjusting module 10 is configured to adjust a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and taking the current Gammavalue of the core as the value of γ_{n }under the preset value; and
 for displayers, in order to make all picture quality of displayers the same, it is necessary to strictly control components of the displayers in consistency so as to reduce performance difference between the massproduced displayers, and to adjust the tobeadjusteddisplayers according to a standardPQdisplayer as standard so as to make all the picture quality of the tobeadjusteddisplayers reach or approximately reach the picture quality of the standardPQdisplayer. Picture quality of a displayer has been adjusted to the target picture quality, when Gammavalue of the displayer reaches a value that makes the best picture quality. Gammavalue of a displayer includes Gammavalue of the core and Gammavalue of the Timer Controller Register (TCON) of the displayer. And since Gammavalue of TCON is determined by properties of the screen driving plate, that is, Gammavalue of TCON of the displayer is fixed, to adjust picture quality is actually to adjust Gammavalue of the core. Generally speaking, to adjusting picture quality is to adjust different gray scales. Because there commonly divided with 256 different gray scales, Gammavalue of a displayer don'"'"'t have to be the same when the displayer reaches one target picture quality under different gray scales, that is, Gammavalue of the core don'"'"'t have to be the same. As it is convenient to measure Gammavalue of a displayer, and same picture quality corresponds to same Gammavalue of the displayers machine, a tobeadjusteddisplayer differs only in Gammavalue of the core in comparison with the standardPQdisplayer when the tobeadjusteddisplayer reaches the same picture quality with that of the standardPQdisplayer. And Gammavalue of the core of the standardPQdisplayer is known when the adjustment is finished, Gammavalue of TCON may be presented in relationship with Gammavalue of the core and/or Gammavalue of the displayer, which means the only one unknown is Gammavalue of the core of the tobeadjusted display; adjust a core of a tobeadjusteddisplayer to make Gammavalue of the tobeadjusteddisplayer reach a target value under a preset gray scale, and take the corresponding Gammavalue of the core as the value of γ_{n }under the preset value; thereby, excluding the effect caused by inconvenient measurement of Gammavalue of TCON.
A computing module 20 is configured to compute the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by a preset algorithm based on the value of γ_{n}, the values of γ_{0 }and γ_{0}′ corresponding to a standardPQdisplayer, which are under one same gray scale;
As mentioned above, as only Gammavalue of the core of the tobeadjusteddisplayer is unknown, and Gammavalue of the displayer includes Gammavalue of the core and Gammavalue of the TCON, a preset algorithm may be obtained through mathematical operation according to the relationship between Gammavalue of the tobeadjusteddisplayer, Gammavalue of the standardPQdisplayer, Gammavalue of the cores and the TCONs of the tobeadjusteddisplayer and the standardPQdisplayer. That is, Gammavalue of the core of the tobeadjusteddisplayer is presented by Gammavalue of the tobeadjusteddisplayer and Gammavalue of the TCON of the tobeadjusteddisplayer, and Gammavalue of the tobeadjusteddisplayer and Gammavalue of the TCON of the tobeadjusteddisplayer may be presented by Gammavalue of the standardPQdisplayer and Gammavalue of the core of the standardPQdisplayer. It means that to present Gammavalue of the core of the tobeadjusteddisplayer by Gammavalue of the standardPQdisplayer and Gammavalue of the core of the standardPQdisplayer (the preset algorithm), and Gammavalue of the core of the standardPQdisplayer is known (the values of γ_{0 }and γ_{0}′), the value of γ_{n }of the tobeadjusteddisplayer may also be obtained by adjustment, therefore the value of γ_{n}′ corresponding to the tobeadjusteddisplayer may be computed according to the preset algorithm and the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
The adjusting module 10 is also configured to adjust picture quality of the tobeadjusteddisplayer according to the value of γ_{n}′;
 and, the value of γ_{0 }is Gammavalue of a core of the standardPQdisplayer when Gammavalue of the standardPQdisplayer reaches the target value, the value of γ_{0}′ is Gammavalue of the core of the standardPQdisplayer when picture quality of the standardPQdisplayer reaches a target, the value of γ_{n }is Gammavalue of the core of the tobeadjusteddisplayer when Gammavalue of the tobeadjusteddisplayer reaches the target value, and the value of γ_{n}′ is Gammavalue of the core of the tobeadjusteddisplayer when the picture quality of the tobeadjusteddisplayer reaches the target.
The core of the tobeadjusteddisplayer is adjusted to make Gammavalue of the core be the value of γ_{n}′ under the gray scale, so as to realize the adjustment of the picture quality. In this case, Gammavalue of the tobeadjusteddisplayer is the same as that of the standardPQdisplayer, that is, the picture quality of the tobeadjusteddisplayer is the same as that of the standardPQdisplayer. Traditional picture quality adjustment method is to directly copy Gammavalue of the core of the standardPQdisplayer to the tobeadjusteddisplayer. When Gammavalue of the TCON of the standardPQdisplayer is different from that of the tobeadjusteddisplayer, i.e., when there is performance difference between individual products, Gammavalue of the tobeadjusteddisplayer will be different from that of the standardPQdisplayer, i.e. the picture quality of the two displayers is different. The picture quality of the displayers is adjusted by adaptively computing all Gammavalue of the core of tobeadjusteddisplayers, so that each tobeadjusteddisplayer may have the same picture quality with that of the standardPQdisplayer regardless of whether the components of the displayers are in consistency, which is simple and efficient.
According to the present embodiment, the picture quality of the displayers is adjusted by adaptively computing all Gammavalue of the core of tobeadjusteddisplayers, so that each tobeadjusteddisplayer may have the same picture quality with that of the standardPQdisplayer regardless of whether the components of the displayers are in consistency, which is simple and efficient.
Referring to
The acquiring module 30 is configured to acquire a functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusted display; and
 the algorithm module 40, configured to acquire the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer by operation on the functional relationships.
A functional relationship between Gammavalue of the displayer and Gammavalue of the core, and a functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusted display are acquired; and the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is acquired by operation on the functional relationships. In one embodiment, the computing process according to the preset algorithm is as follows, in which the target value of Gammavalue of the displayer is taken as 2.2 as an example for description. Of course, Gammavalue of the displayer may also be any other values; under the gray scale n, Gammavalue of the TCON of the standardPQdisplayer is recorded as the value of γ_{T0}, Gammavalue of the core is recorded as the value of γ_{0 }when Gammavalue of the displayer is 2.2, and when Gammavalue of the core is the value of γ_{0}, the standardPQdisplayer has the target picture quality, and Gammavalue of the displayer is a; record Gammavalue of the TCON of the tobeadjusteddisplayer as the value of γ_{Tn}, and when Gammavalue of the displayer reaches 2.2, Gammavalue of its core is the value of γ_{n}. When Gammavalue of the tobeadjusteddisplayer is also a, the tobeadjusteddisplayer has the target picture quality same with that of the standardPQdisplayer, and the corresponding Gammavalue of the core is the value of γ_{n}′; the functional relationship between Gammavalue of the displayer and Gammavalue of the core and the TCON is presented as follows:
n{circumflex over ( )}(γ_{0}′·γ_{T0})=n{circumflex over ( )}a (1)
n{circumflex over ( )}(γ_{0}·γ_{T0})=n{circumflex over ( )}2.2 (2)
n{circumflex over ( )}(γ_{n}′·γ_{Tn})=n{circumflex over ( )}a (3)
n{circumflex over ( )}(γ_{n}·γ_{Tn})=n{circumflex over ( )}2.2 (4)
From the above equations (1) and (3), (2) and (4), it may be obtained as follows:
n{circumflex over ( )}(γ_{0}′·γ_{T0})=n{circumflex over ( )}(γ_{n}′·γ_{Tn}) (5)
n{circumflex over ( )}(γ_{0}·γ_{T0})=n{circumflex over ( )}(γ_{n}·γ_{Tn}) (6)
That is,
γ_{0}′·γ_{T0}=γ_{n}′·γ_{Tn} (7)
γ_{0}′·γ_{T0}=γ_{n}·γ_{Tn} (8)
From equations (7) and (8), it may be obtained as follows:
γ_{0}′/γ_{0}=γ_{n}′/γ_{n} (9)
That is,
γ_{n}′=γ_{0}′·γ_{n}/γ_{0} (10)
The above formula (10) is the preset algorithm. It may be known from the formula (10) that as long as the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer, and the value of γ_{n }of the tobeadjusteddisplayer, are determined, the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is determined. And the value of γ_{n}′ is right the Gammavalue of the core to be adjusted to for the picture quality same with that of the standardPQdisplayer. It is simple to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer via the preset algorithm, which corresponds to Gammavalue of the core that makes the tobeadjusteddisplayer gain the same picture quality with that of the standardPQdisplayer.
In this embodiment, the preset algorithm for computing the value of γ_{n}′ corresponding to the tobeadjusteddisplayer is obtained by the functional relationship between Gammavalue of displayer and Gammavalue of core, and the functional relationship between Gammavalue of the core of the standardPQdisplayer and Gammavalue of the core of the tobeadjusteddisplayer. It is simple to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer via the preset algorithm, which corresponds to Gammavalue of the core that makes the tobeadjusteddisplayer gain the same picture quality with that of the standardPQdisplayer.
Referring to
The adjusting module 10 is also configured to adjust the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and to take the corresponding Gammavalue of the core as the value of γ_{0 }under the preset value; and
 adjusting the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value;
 the inputting module 50 is configured to input the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer.
As mentioned above, to obtain the value of γ_{n}′ corresponding to the tobeadjusteddisplayer through the preset algorithm makes it necessary to know the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer, and the value of γ_{n }of the tobeadjusteddisplayer, and the values of γ_{0 }and γ_{0}′ are obtained by adjusting the standardPQdisplayer. adjust the core to make Gammavalue of the standardPQdisplayer reach the target value under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0 }under the preset value; adjust the core to make picture quality of the standardPQdisplayer reach the target under the preset gray scale, and taking the current Gammavalue of the core as the value of γ_{0}′ under the preset value; Input the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer into the tobeadjusteddisplayer after the values of γ_{0 }and γ_{0}′ are obtained, then it is only necessary for obtaining the value of γ_{n}′ corresponding to the tobeadjusteddisplayer to adjust the tobeadjusteddisplayer so that Gammavalue of the tobeadjusteddisplayer reaches the target value; the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer may be inputted into the tobeadjusteddisplayers in one time, which are produced in one batch, so that picture quality adjustment may be carried out on the batch of the tobeadjusteddisplayers.
According to the embodiment, the values of γ_{0 }and γ_{0}′ corresponding to the standardPQdisplayer may be obtained in advance, and then input the values of γ_{0 }and γ_{0}′ into the tobeadjusteddisplayers, so that the picture quality adjustment may be carried out on the batch of the tobeadjusteddisplayers.
Referring to
The target value setting module 60 is configured to set the target value of Gammavalue of the displayer corresponding to the preset gray scale according to the gray level.
According to the present embodiment, setting the target value of the displayer corresponding to the preset gray scale according to the gray levels may improve the contrast of the picture quality.
Referring to
The warning module 70 is configured to send a warning message, when the value of γ_{n}′ is not obtained by adjusting the core.
According to the present embodiment, a warning message is sent, when the value of γ_{n}′ value is not obtained by adjusting the core, so that the worker may deal with the displayer, thus to ensure that all the displayers may be adjusted to have the target picture quality.
The above is only the preferred embodiment of the present disclosure and is not therefore limiting the scope of the patent of the present disclosure. Any equivalent structure or equivalent process change made by using the contents of the present specification and drawings, or directly or indirectly applied in other related technical fields, is similarly included in the scope of the patent protection of the present disclosure.